An Anti-Pull Shear Locking Device

Abstract

The invention relates to a pullout-resistant shear locking device, which includes an upper beam, a lower beam, a steel member, a tapered sleeve, a shear connector, and a column ceramic; the two steel members are respectively connected with the upper beam and the upper beam. The lower beam is connected; the tapered sleeve is set in the reserved hole of the steel member and fixedly connected with the steel member; the upper part and the lower part of the shear connector are respectively connected with one of the tapered sleeves The cylinders are connected, and the middle part of the shear connector is not supported by any parts, which is a weak section; the ceramic cylinder is set in the cylinder reserved hole in the center of the steel member, and runs through the upper and lower steel members. After the assembly of the locking device is completed, the upper and lower beams produce horizontal displacement under the action of the earthquake. At this time, the steel member transmits force to the shear connector, which acts as a horizontal lock under the action of a small earthquake. The seat starts to play a role, and the horizontal movement consumes energy, and the connection form of the tapered sleeve can play an anti-pull effect.

Description

technical field [0001] The invention belongs to the field of shock absorption and isolation of building structures, and in particular relates to a pullout-resistant shear locking device. Background technique [0002] The nuclear power plant structure is a special structural system, and earthquake is one of the biggest threats to its safety. When subjected to an earthquake, all structures, systems, components and equipment of a nuclear power plant are excited almost simultaneously, which will endanger the integrity of the structure and the integrity of the functions of the equipment and components. [0003] The loss of life and property caused by the severe earthquake is shocking. If a severe earthquake occurs in the area where the nuclear power plant is located, the consequences will be disastrous. In 1999, the Jiji Earthquake shut down two units of the Taiwan No. 1 Nuclear Power Plant. In 2007, the Niigata Earthquake in Japan led to the closure of the Kashiwazaki Kariwa Nu...

AI Technical Summary

Problems solved by technology

Seismic isolation can effectively reduce the acceleration seismic response of the nuclear island, but at the same time, the excessive displacement of the seismic isolation layer may cause the pipelines entering and leaving the nuclear island to break, which is likely to cause secondary damage

This has become a key issue limiting the application of seismic isolation technology in nuclear power structures

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